Overview - Siemens SIMATIC NET SCALANCE X-300EEC Compact Operating Instructions

Connecting
6.7 Power supply
EXPLOSION HAZARD
You may only connect or disconnect cables carrying electricity when the power supply is
switched off or when the device is in an area without inflammable gas concentrations.
Safety notices for use according to ATEX and IECEx
If you use the device under ATEX or IECEx conditions you must also keep to the following
safety notices in addition to the general safety notices for protection against explosion:
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
EXPLOSION HAZARD
Do not press the SELECT/SET button when there is an explosive atmosphere.
6.7.2.1

Overview

Table 6-3
Device
X302-7EEC
X307-2EEC
50
WARNING
WARNING
WARNING
24 to 48 V DC safety extra low voltage
Device version
(power supply)
1 x 24 to 48 V DC
2 x 24 to 48 V DC
1 x 24 to 48 V DC
2 x 24 to 48 V DC
24 V safety extra-low voltage
can be connected redundantly
Compact Operating Instructions, 11/2019, A5E02630809-14
(SELV)
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SCALANCE X-300EEC